cont=ffffffff8ad036a0
current_req=0000000000000000
command_status=-1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 1 PID: 0 at drivers/block/floppy.c:999 floppy_interrupt+0x3cc/0x440 drivers/block/floppy.c:1765
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:floppy_interrupt+0x3cc/0x440 drivers/block/floppy.c:1765
Code: 1a d0 8a 89 c6 89 05 73 e5 ea 0c e8 8e 27 ff ff 8b 1d 68 e5 ea 0c e9 9c fd ff ff e8 2e 0e b2 fc e9 66 fd ff ff e8 e4 39 60 fc <0f> 0b e9 c9 fe ff ff 48 c7 c7 00 f2 40 8c e8 d1 0d b2 fc e9 5a fc
RSP: 0018:ffffc900003f8e58 EFLAGS: 00010046
RAX: 0000000080010001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888014aac4c0 RSI: ffffffff85232dcc RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000030323554 R12: ffffffff8522a780
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000006
FS: 0000000000000000(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555561cf708 CR3: 0000000064a9a000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
floppy_hardint+0x1b1/0x200 arch/x86/include/asm/floppy.h:66
__handle_irq_event_percpu+0x22b/0x730 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x263/0xd00 kernel/irq/chip.c:819
generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
handle_irq arch/x86/kernel/irq.c:231 [inline]
__common_interrupt+0xa1/0x220 arch/x86/kernel/irq.c:250
common_interrupt+0xa8/0xd0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:636
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:711
Code: 89 07 49 c7 c0 08 00 00 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 76 ff ff ff cc cc cc cc f3 0f 1e fa 66 90 0f 00 2d 03 f8 36 00 fb f4 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 65
RSP: 0018:ffffc9000038fe08 EFLAGS: 00000242
RAX: 0000000000cff1e3 RBX: 0000000000000001 RCX: ffffffff8a0f8665
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff88806b736ceb
R10: ffffed100d6e6d9d R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8e79ce90 R14: 0000000000000000 R15: 0000000000000000
default_idle_call+0x67/0xa0 kernel/sched/idle.c:97
cpuidle_idle_call kernel/sched/idle.c:170 [inline]
do_idle+0x317/0x3c0 kernel/sched/idle.c:282
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
start_secondary+0x221/0x2b0 arch/x86/kernel/smpboot.c:269
secondary_startup_64_no_verify+0xf4/0xfb
----------------
Code disassembly (best guess):
0: 89 07 mov %eax,(%rdi)
2: 49 c7 c0 08 00 00 00 mov $0x8,%r8
9: 4d 29 c8 sub %r9,%r8
c: 4c 01 c7 add %r8,%rdi
f: 4c 29 c2 sub %r8,%rdx
12: e9 76 ff ff ff jmpq 0xffffff8d
17: cc int3
18: cc int3
19: cc int3
1a: cc int3
1b: f3 0f 1e fa endbr64
1f: 66 90 xchg %ax,%ax
21: 0f 00 2d 03 f8 36 00 verw 0x36f803(%rip) # 0x36f82b
28: fb sti
29: f4 hlt
* 2a: fa cli <-- trapping instruction
2b: c3 retq
2c: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
33: 00 00 00 00
37: 0f 1f 40 00 nopl 0x0(%rax)
3b: f3 0f 1e fa endbr64
3f: 65 gs